Sunil, Isha, and Mitali Sharma. “The Predictive Value of SFlt-1/PIGF Ratio in High Risk Patients for the Development of Preeclampsia”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 8, no. 9 (August 26, 2019): 3705–3709. Accessed October 27, 2025. https://www.ijrcog.org/index.php/ijrcog/article/view/7006.